Porous gas diffusion-electrode

Details Porous gas diffusion-electrode Porous gas diffusion-electrode

1983-08-29

1985-02-26

Niebling, John F.

Chemistry: electrical current producing apparatus, product, and

Fluid active material or two-fluid electrolyte combination...

429 27, 204140, 204284, 502101, C25F 100, H01M 436

Patent

active

045018030

ABSTRACT:
A porous gas-diffusion electrode having a ruthenium electrocatalyst is conditioned for operation as a hydrogen consuming anode by connecting the electrode as a cathode in a suitable electrolyte until it drops below the reversible hydrogen potential and evolves hydrogen. Preferably, the electrode is contacted with a hydrogen atmosphere prior to or at the beginning of hydrogen evolution, and conditioning may be carried out in situ in a cell in which the electrode is to operate as hydrogen consuming anode.

REFERENCES:
patent: 4191618 (1980-03-01), Coker
patent: 4407905 (1983-10-01), Takeuchi

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